Analysis

  • max time kernel
    117s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    15/05/2024, 02:03

General

  • Target
    f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe
  • Size 588KB
  • Sample240515-cg13pace82
  • SHA256 f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials
C2
  • https://scratchdreams.tk

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables with potential process hoocking 5 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe
    "C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2268
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2588
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EDqfTdWmvf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2636
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EDqfTdWmvf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2961.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2712
    • C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe
      "C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe"
      2⤵
        PID:2520
      • C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe
        "C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe"
        2⤵
          PID:2532
        • C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe
          "C:\Users\Admin\AppData\Local\Temp\f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:2628

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            tmp2961.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\tmp2961.tmp
            • Size 1KB
            • SHA256 9e8219e2363947d39f8ca13660c7e892020427cb5743d21c912b7bd116bc2245
            • MD5 SHA1 SHA512

            ZGRUW12CAC5SXTB9U8F5.temp

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\ZGRUW12CAC5SXTB9U8F5.temp
            • Size 7KB
            • SHA256 cf7f78363dc7dd15ca55723c374aa31a0bf3547d1b0685427190808c66ffd705
            • MD5 SHA1 SHA512 SSDEEP

            memory/2268-4-0x00000000006A0000-0x00000000006B0000-memory.dmp

            memory/2268-32-0x0000000073FD0000-0x00000000746BE000-memory.dmp

            memory/2268-0-0x0000000073FDE000-0x0000000073FDF000-memory.dmp

            memory/2268-5-0x0000000000730000-0x0000000000746000-memory.dmp

            memory/2268-6-0x00000000052E0000-0x0000000005348000-memory.dmp

            memory/2268-2-0x0000000073FD0000-0x00000000746BE000-memory.dmp

            memory/2268-1-0x0000000000020000-0x00000000000BA000-memory.dmp

            memory/2268-3-0x0000000000670000-0x0000000000690000-memory.dmp

            memory/2628-23-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/2628-31-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/2628-29-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/2628-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            memory/2628-28-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/2628-19-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/2628-25-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/2628-21-0x0000000000400000-0x0000000000426000-memory.dmp